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Compton Suppression System performance evaluation for measurement of VERDI activation detectors

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Hellenic Nuclear Physics Society   

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Annual Symposium of the Hellenic Nuclear Physics Society  | ΕΚΤ eProceedings   

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Compton Suppression System performance evaluation for measurement of VERDI activation detectors (EN)
Anagnostopoulou, Vasiliki
Stamatelatos, Ion E.
I. Savva, Marilia
Vasilopoulou, Theodora
Kokkoris, Michael
Mergia, Konstantina
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
2023-05-05
The VERDI detector was developed for accurate neutron measurements in the plasma-facing modules of a tokamak. It comprises a low activation capsule, capable to withstand the harsh conditions of the fusion environment, containing a defined mass of metallic foils. The neutron fluence and energy spectrum are derived by analysis of the gamma lines produced by neutron activation of the metallic elements. In this work, the use of a Compton Suppression System (CSS) is investigated aiming to enhance the sensitivity of VERDI detector analysis. The CSS consists of a 40% HPGe primary detector coupled to a set of NaI secondary detectors. The apparatus was set to discard signals simultaneously recorded on both primary and secondary detectors, thus lowering the Compton continuum. The VERDI detectors were irradiated at the Joint European Torus (JET) during the 2019 Deuterium-Deuterium (DD) campaign. The CSS performance was studied by calculating peak and continuum suppression factors. The advantage introduced by Compton suppressed gamma spectrometry for each nuclide of interest is explored and the suitability of this system for VERDI detector measurements is discussed. (EN)
fusion (EN)
gamma spectrometry (EN)
neutron dosimetry (EN)
Compton Suppression System (EN)
VERDI detector (EN)
Annual Symposium of the Hellenic Nuclear Physics Society
English
Hellenic Nuclear Physics Society (HNPS) (EN)
2654-0088
2654-007X
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 29 (2023); 167-170 (EL)
HNPS Advances in Nuclear Physics; Vol. 29 (2023): HNPS2022; 167-170 (EN)
Πνευματική ιδιοκτησία (c) 2023 Vasiliki Anagnostopoulou, Marilia I. Savva, Theodora Vasilopoulou, Konstantina Mergia, Michael Kokkoris, Ion E. Stamatelatos (EL)
http://creativecommons.org/licenses/by-nc-nd/4.0
Hellenic Nuclear Physics Society
Annual Symposium of the Hellenic Nuclear Physics Society



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